Results 51 to 60 of about 108,431 (221)

Decision making in pterygium surgery: Our experience noting the length of pterygium

Kerala Journal of Ophthalmology, 2021
Background: This is a prospective study which aims: To compare the preoperative and postoperative corneal astigmatism in patients undergoing pterygium excision by conjunctival autograft technique using autologous blood.
Anjali Lita Roche, Narendra Panduranga Datti, Indu Govind, Ravikiran Kamunuri   +3 more
doaj   +1 more source

Focal ambient visual acuity stimulation improves vision in amblyopic children with stagnating BCVA—A retrospective study

Acta Ophthalmologica, Volume 104, Issue 7, Page 811-817, November 2026.
Abstract Purpose The aim of this study was to investigate whether amblyopic children with stagnating best‐corrected visual acuity (BCVA) would benefit from an additional stimulation therapy—specifically focal ambient visual acuity stimulation (FAVAS) integrated into a computer game—compared to occlusion therapy alone.
Kai Januschowski, Abdullah Salim, Anna Thonet, Spyridon Dimopoulos, Henrike Julich‐Haertel, Johann‐Peter Engels, Norbert Schulz, Stéphanie Langefeld, Rudolf Siegel, Susanne Hopf   +9 more
wiley   +1 more source

Central and mid-peripheral corneal astigmatism in an elderly population: a retrospective analysis of Scheimpflug topography results

Scientific Reports, 2021
Implantation of toric intraocular lenses (IOLs) has become standard in the correction of corneal astigmatism. The IOL selection is based on keratometric measurements of the central cornea.
Grzegorz Łabuz, Dorottya Varadi, Ramin Khoramnia, Gerd U. Auffarth   +3 more
doaj   +1 more source

3D‐Printed Corneal Substitutes: Materials, Fabrication, and Preclinical Progress

Advanced Materials Technologies, Volume 11, Issue 20, 21 October 2026.
Successful clinical translation of 3D‐printed corneal substitutes relies on the interplay between the bioink properties, cellular component, and the fabrication process. These factors influence the critical properties of the construct, including optical transparency, mechanical stability, suture retention, that ultimately govern long‐term stromal ...
Shadi Moshayedi, Ashley Vazquez, Alexander J. Choi, Dimitrios Karamichos, Jayoung Kim   +4 more
wiley   +1 more source

Estimation of total corneal astigmatism by anterior corneal measurement.

, 2016
No statistically significant difference in total corneal astigmatism was found between the high-myopia and control groups (p = 0.669).
Yongxiang Jiang (330534), Yating Tang (784526), Dongjin Qian (3108339), Qinghe Jing (3108336), Yi Lu (6211)   +4 more
core   +1 more source

Understanding higher‐order aberrations in keratoconus

Optometry and Vision Science, Volume 103, Issue 10, October 2026.
ABSTRACT Keratoconus is characterized by progressive thinning and increasing irregularity of the cornea, leading to substantial degradation in optical quality through the induction of both lower‐ and higher‐order aberrations (HOAs). In addition to inducing myopic and astigmatic refractive error, asymmetric corneal steepening generates complex optical ...
Gavin Swartz, Khyber Alam, Alex Gentle, Laura E. Downie   +3 more
wiley   +1 more source

Posterior Corneal Astigmatism [PDF]

, 2022
In order to calculate an appropriate intraocular lens (IOL) power for an eye undergoing cataract surgery, the most important measurements are the axial length of the eye and corneal shape.
LaHood, Benjamin Richard
core  

Polar Value Analysis of Low to Moderate Astigmatism with Wavefront-Guided Sub-Bowman Keratomileusis

Journal of Ophthalmology, 2017
Purpose. To evaluate the astigmatic outcomes of wavefront-guided sub-Bowman keratomileusis (WFG-SBK) for low to moderate myopic astigmatism. Methods. This study enrolled 100 right eyes from 100 patients who underwent WFG-SBK for the correction of myopia ...
Pisong Yan, Zhiyu Du, Yu Zhang
doaj   +1 more source

Effect of The Corneal Incision Length Aligned with The Steep Axis on Preoperative Corneal Astigmatism in Eyes Undergoing Phacoemulsification [PDF]

Zagazig University Medical Journal
Background: To evaluate the effect of corneal incisions length aligned with the steep corneal axis on the preoperative corneal astigmatism, in eyes undergoing phacoemulsification.
Reda Mahdy, Zeiad Ali, Basem Ibrahim, Tamer Elsayed   +3 more
doaj   +1 more source

Repositioning of Vertical Implantable Phakic Contact Lens

Clinical Case Reports, Volume 14, Issue 9, September 2026.
Vertical orientation of Implantable Phakic Contact Lens. ABSTRACT Implantable phakic contact lens (IPCL) V2.0 has a special patterned hole on the leading left corner to ensure correct orientation and positioning. Incorrect orientation is an absolute indication for repositioning.
Sushank Bhalerao, Pratik Gogri, Sowjanya Vuyyuru, Uma Yogesh Thigale, Prerana A. Shetty   +4 more
wiley   +1 more source